<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>消息通知</title>
</head>
<body>
  <button id="notifyBtn">点击弹出消息通知</button>
  <script>
    const notifyBtn = document.querySelector('#notifyBtn')
    const option = {
      title: '卧槽 通知来了！',
      body: '我这里是通知'
    }

    notifyBtn.onclick = () => {
      new window.Notification(option.title, option)
    }
  </script>
</body>
</html>